<!DOCTYPE HTML>
<meta charset="UTF-8">
<title>Reference for things that create a stacking context</title>
<link rel="stylesheet" href="stacking-context-common.css">
<style>
.sc {
  z-index: 0;
}
</style>
<div class="contain">
  <div class="maybesc sc">
    <div class="inner1"></div>
    <div class="inner3"></div>
  </div>
  <div class="intruder"></div>
</div>
